| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could not [verb] [verb] | 2606 |
|
| 2 | not [verb] [conj] [verb] | 2434 |
|
| 3 | could not [verb] [conj] | 915 |
|
| 4 | could [verb] [conj] [verb] | 726 |
|
| 5 | could not [conj] [verb] | 34 |
|
